MJK Expert 1400 User manual

The maximum length of the cable is calculated from the Expert pressure transmitters internal capacity
(3,5 nF) and internal self-induction (7 μH). The cable capacity (MJK 0,8nF/m) and the self-induction (MJK
1.5 μH/m) is added.
The 2 values are added to calculate the total capacity and the total self-induction. The Ex isolator or
Zener barrier is marked with the maximum capacity and self-induction for the connection. These two
values must never be exceeded.
Expert™ 1400 /Expert™ 3400
Submersible Hydrostatic Level Transmitters
CE Certificate of conformity
This product complies with the requirements concerning electromagnetic compatibility (EMC) stipulated in Council
directive no. 89/336/EEC, 2004/108/EC, 1999/EC, on the approximation of the laws of the Member States relating
to electromagnetic compatibility.
We declare that the product complies to the values stipulated in EN 61000-6-4 2007-02-19, EN 61000-6-2 2005-09-08,
EN 600079-0 : 2012, EN 60079-11 : 2012.
135 mm
135 mm
164mm
The user shall check the compatibility between the
process media and the materials of the apparatus.
Ratings:
Vmax(Ui) = 30Vdc
Imax(Ii) = 0.101 A
Pmax(Pi) = 0.75 W
C i 3.5 nF + C cable
L i 7 µH + L cable
MJK CABLE:
C Cable : 0,8 nF / m
L Cable : 1,5 µH / m
Hazardous Area Non-Hazardous Area
Power supply
Wire (1) Red
Ventilating tube
Wire (2) Brown
Shield
Wire (3)
Black
+++
+
---
-
Apparatus
Zener barrier
or EX isolator
Class I Division 1 Group A-D
Zone 1 or 2
Gas groups IIA,IIB or IIC
Applicable Ex-standards:
UL 913, 8th Ed.,Rev. 2013
UL 60079-0, 6th Ed.Rev. 2013 (as referenced by UL 913)
UL 60079-11, 6th Ed.,Rev. 2013 (as referenced by UL 913)
CENELEC EN 60079-0:2012+A11:2013
CENELEC EN 60079-11:2012
Conform to IEC 60079-11 6.3.13
IEC 60079-0 Ed.6
IEC 60079-11 Ed.6
Ventilating tube
shall be terminated
before exiting the
hazardous area !
MANUAL
EN 2.76/2.77 Expert 1400/3400 1812
MJK Automation
Blokken 9
DK-3460 Birkerød
Denmark
Tel [phone]
Fax [phone]
www.mjk.com
Connect, Mµ Connect, Chatter, MagFlux, Oxix, pHix compact, Shuttle and SuSix are registered trademarks of MJK Automation ApS.
As our products are developed continuously, we reserve the right to make any alterations without prior notice © 2015 Xylem, Inc.
Control Drawing 5222
II 2G Ex ia IIC T6 (-20°C≤Ta≤40°C)
II 2G Ex ia IIC T5 (-20°C≤Ta≤50°C)
II 2G Ex ia IIC T4 (-20°C≤Ta≤80°C)
Class I, Division 1, Group A-D T4/T5/T6
Model 3400 Model 1400
Demko 06 ATEX 137949X
• Before taking into use, the user shall make an evaluation of the compatibility between process media
and the materials in the 1400 or 3400 ExpertTM Level Transmitter.
• The equipment must be connected via an approved or certified interface/zener barrier placed out
side the hazardous area.
• For installations in which both the Ci and Li of the connected apparatus exceeds 1% of the Co and Lo
parameters (excluding the cable), then 50% of Co and Lo parameters are applicable and shall not be
exceeded.
• For model 3400 ExpertTM Level Transmitter: Warning - Clean only with a damp cloth to prevent the
possibility of electrostatic discharge.
Specific conditions for use
Manufactured by MJK Automation ApS, Blokken 9, DK-3460 Birkerød, Denmark

Mechanical mounting
ExpertTM Level Transmitter model 1400
1: Mount a suitable hook over the desired
measuring location. Note the weight of the
cable.
2: Lower the ExpertTM Level Transmitter
into the liquid.
ExpertTM Level Transmitter model 3400
1: Mount a suitable hook over the desired
measuring location. Note the weight of the
cable.
2: Lower the ExpertTM Level
Transmitter into the liquid.
3: If the ExpertTM Level
Transmitter is to be used in
a wetwell or other locations
with turbulence or other
disturbance, it is advis-
able to install a pipe (min.
nominal diameter = 75 mm)
to protect the ExpertTM Level
Transmitter from bumping
into the wall or other com-
ponents.
Take care not to hit the
bottom hard since it may
damage the ExpertTM Level
Transmitter!
It is very important that mini-
mum 25 mm of the ExpertTM
Level Transmitter is not
covered by the pipe!
ExpertTM Level Transmitter
model 3400 with thread top
1: Mount the ExpertTM Level
Transmitter onto a 1” pipe and
mount the pipe firmly at the
desired measuring location.
2: Lower the ExpertTM Level
Transmitter into the liquid.
Take care not to hit the bottom
hard as it may damage the
ExpertTM Level Transmitter!
Introduction
Thank you for choosing ExpertTM Level Transmitter.
We have done everything possible to make an
ExpertTM Level Transmitter that can fulfil all your
demands.
ExpertTM Level Transmitter is suitable for all kinds
of level measurements. It can control and supervise
levels in wells and tanks - including aggressive and
polluted media.
The ExpertTM Level Transmitter is both easy to in-
stall and put into service, but read this manual first
- then you will benefit the most from the ExpertTM
Level Transmitter right from the beginning.
You can always contact your representative or the
MJK Service Hotline for advice and guidance. Also,
take a look at http://www.mjk.com
ExpertTM Level Transmitter is registered trademark of
MJK.
On the model ExpertTM 1400 Level Transmitters,
the pressure ranges together with the corre-
sponding part numbers are laser engraved on the
transmitter housing.
For all versions, the pressure range is indicated on
the transmitter.
On the model ExpertTM 3400 Level Transmitters,
the pressure ranges together with the corre-
sponding part numbers are laser engraved on the
transmitter housing.
For all versions, the pressure range is indicated on
the ExpertTM Level Transmitter.
Safety instructions
1: Read this manual carefully.
2: Be aware of the environment on the installation
site. Wear necessary protective equipment and follow
all current safety regulations.
3: Do not operate the equipment outside the speci-
fied electrical, thermal and mechanical parameters
(see datasheet). Install the device only in media for
which the wetted materials have sufficient durabil-
ity. (See datasheet for housing material.)
Max. supply voltage is 30 VDC.
4: Do not connect or use any programming inter-
face/equipment while the ExpertTM Level Transmitter
is located in an explosion hazardous environment.
Hazardous areas
1: All current local and national standards, regula-
tions regarding installation and use of Ex or hazard-
ous zone approved equipment, certifications and
safety instructions for Ex equipment that have been
used together with the installation of the ExpertTM
1400 and 3400 Level Transmitter must be strictly
observed.
2: The use of an approved zener barrier or isolator
is mandatory when installing Expert™ 1400 and
3400 Level Transmitter in explosion hazardous
areas.
Repair
1: Repair of Ex approved equipment must only be
done by MJK or by a service representative ap-
proved by MJK.
ExpertTM 1400 Level Transmitter
ExpertTM 3400 Level Transmitter
164mm
Model 3400
Cable
bracket
Model
1400
Designation of wires, cutting & stripping the cable
The factory delivered cable has the wires marked
with the numbers 1 - 2 - 3. If the cable needs to
be cutted and stripped, the shield should be con-
nected as the no. 3 wire.
Do NOT connect any of the colored program-
ming wires as it may damage the transmitter. The
programming wires should be cut off in different
lengths to prevent them from short circuit➁.
Take care not to block or squeeze the air pressure
compensation tube ➄.
Factory delivery
➁
➀
➃
➂
Cutted and
stripped
➁
➃
➂
➄➅
2) Do not connect a programming unit
to the ExpertTM Level Transmitter or make
any attempt to program the ExpertTM Level
Transmitter while it is located in an explo-
sion hazardous zone!
1) If the cable is extended, the complete
capacity and self-induction cannot exceed
the maximum specifications. For UL or Ex
approved mounting, see control drawing on
the next page.
Electrical mounting
Cable length vs. supply voltage
The cable can be lengthened with any type of
cable➀. Although the measuring signal is not sen-
sitive to electrical noise, we recommend the use of
a screened cable.
Ensure that no moisture can enter the pressure
compensation tube inside the cable.
➀
2 3
No. Wire Color Description
1Red or White + 10-30 V DC
2 Brown 4-20 mA (-supply)
3 Black P/E Connection (Ground)
4 Moisture filter
5 Transparent Air pressure compensation tube
6 Programming wires
Model 3400
Protective pipe.
Min. nominal
diameter = 75mm
Min. 25-50 mm
Protective pipe
Cable
bracket